1st April 2022

You are the F2 on your community psychiatry rotation

You are the F2 on your community psychiatry rotation. During a review clinic, you see a patient with bulimia nervosa diagnosed 2 years ago. She has recently been inducing vomiting. Recently, she has noticed episodes of breathlessness and light-headedness, accompanied by a ‘strange feeling in her chest’. Your consultant asks you to request an ECG. You decide to order a U&E to assess for any electrolyte imbalances.

Select the SINGLE electrolyte that is most likely to be contributing to her symptoms from the list below. Select ONE option only.